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How do i get this ?

How do i get this ?-example-1
User Pratiked
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2 Answers

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you need two values in radians so the correct answers would be pi/6 and 5pi/6 that is where sinx=1/2
User Noel Kennedy
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sinx=1/2
sin30=1/2
therefore x=30 degree
User Matoy
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